The best way to avoid being called out for saying completely different things in public and private is not saying different things in public and private.
If me politely asking for clarification about this sudden change of opinion is "underhanded behavior", or "renouncing from future interactions" means "let's find some flimsy pretext to contact your place of work to tell them what an evil person you are" then Scala might have some issues attracting and retaining contributors in the future.